      :proj  (plmb/fnk [mat pca]
                       (pca-project mat pca))
 
-   :base-clusters
+     :base-clusters
           (plmb/fnk [conv rating-mat proj opts']
            (sort-by :id
             (kmeans (assoc rating-mat :matrix proj)

                :last-clusters (:base-clusters conv)
                :cluster-iters (:base-iters opts'))))
     
    :group-clusters
        (plmb/fnk [conv rating-mat base-clusters opts']
          (sort-by :id
          (kmeans

                group-clusters
                base-clusters))))

     :bid-to-pid
           (plmb/fnk [base-clusters]
             (map :members(sort-by :id (:base-clusters base-clusters))))
     }))
